in ec2instanceconnectcli/input_parser.py [0:0]
def _validate_instance_bundles(instance_bundles, mode):
"""
For supported modes ensure that instance_id exists.
"""
for bundle in instance_bundles:
if mode in ['ssh', 'sftp']:
if not INSTANCE_ID_RE.match(bundle['instance_id']):
raise AssertionError('Missing instance_id')